Koolance GPU-210 is my personal highlight of the loop. There are no waterblocks for this GPU, so you either use the Kraken G12 by NZXT with a AIO or a general purpose waterblock. Most general purpose waterblocks do not fit the holes on the PCB of this GPU, but Koolance GPU-210 does. Aside from that the waterblock from Koolance is exceptional well build.
Everything from Alphacool (except the tubes) was a disappointment. The waterblock/pump combo feels cheap, included thermal paste was desiccated, paint on the fittings and the radiator is uneven, the 90-degree-fittings require different amount of power to rotate. At least the radiator seem to perform very well in combination with the two Noctua fans. The tubes are very soft and easy to work with.